201931455

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{1567}}^1$

素因数の和:1668

約数の個数: 48

約数和(自身を含む): 360364032

約数和(自身を除く): 158432577

約数列:

[1, 3, 5, 11, 15, 33, 55, 71, 121, 165, 213, 355, 363, 605, 781, 1065, 1567, 1815, 2343, 3905, 4701, 7835, 8591, 11715, 17237, 23505, 25773, 42955, 51711, 86185, 111257, 128865, 189607, 258555, 333771, 556285, 568821, 948035, 1223827, 1668855, 2844105, 3671481, 6119135, 13462097, 18357405, 40386291, 67310485, 201931455]

約数ペア:

[(1, 201931455), (3, 67310485), (5, 40386291), (11, 18357405), (15, 13462097), (33, 6119135), (55, 3671481), (71, 2844105), (121, 1668855), (165, 1223827), (213, 948035), (355, 568821), (363, 556285), (605, 333771), (781, 258555), (1065, 189607), (1567, 128865), (1815, 111257), (2343, 86185), (3905, 51711), (4701, 42955), (7835, 25773), (8591, 23505), (11715, 17237)]